EP0667933B1 - Compressor set - Google Patents

Compressor set Download PDF

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Publication number
EP0667933B1
EP0667933B1 EP93922497A EP93922497A EP0667933B1 EP 0667933 B1 EP0667933 B1 EP 0667933B1 EP 93922497 A EP93922497 A EP 93922497A EP 93922497 A EP93922497 A EP 93922497A EP 0667933 B1 EP0667933 B1 EP 0667933B1
Authority
EP
European Patent Office
Prior art keywords
connecting plates
compressor set
casing
casing halves
housing halves
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP93922497A
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German (de)
French (fr)
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EP0667933A1 (en
Inventor
Rudolf Schöning
Manfred Balling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
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Siemens AG
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Filing date
Publication date
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Publication of EP0667933A1 publication Critical patent/EP0667933A1/en
Application granted granted Critical
Publication of EP0667933B1 publication Critical patent/EP0667933B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D23/00—Other rotary non-positive-displacement pumps
    • F04D23/008—Regenerative pumps

Definitions

  • the invention relates to a compressor unit according to the preamble of claim 1.
  • Such a compressor unit is known from DE-U-77 15 000.
  • the four housing halves required for the two side channel blowers are all designed differently. This leads to high manufacturing costs.
  • the connection of the individual housing parts takes place by interposing the middle housing parts between the outer housing parts, which are connected to one another by means of tie rods which engage on connecting lugs provided on the outer housing parts. The entire force must therefore be absorbed by the connecting straps of the outer housing parts.
  • a compressor unit known from FR-A-2 294 114 which consists of a total of four side channel compressors, which are held together by tie rods acting on the outer housing parts of the entire unit.
  • the housing halves located in the middle of the assembly are of identical design in terms of casting technology. Connecting straps are provided on these housing halves, which correspond to corresponding connecting straps provided on the outer housing halves. By means of these connecting straps, the two housing parts, each belonging to a side channel compressor, can be connected to one another. None is said in this document about the possibility of connecting the two side channel compressors to one unit.
  • the invention has for its object to provide a compressor unit that is easier to manufacture and in which the forces necessary for connecting the housing halves are better distributed.
  • the problem is solved by the features specified in the characterizing part of claim 1. Due to the same design in terms of casting technology, at least the inner housing halves, the outlay for the die casting tools required for producing the housing halves is reduced. Due to the special design of the connecting straps, good transmission of the forces in the axial direction is achieved without having to accept harmful bending moments. In addition, the two inner housing halves can be assembled into an assembly in advance.
  • a connection of the housing halves that is completely free of bending moments can be achieved by assigning two connecting lugs on one end face of the respective housing half to a connecting lug symmetrically aligned with these connecting lugs and lying on the other end face of the housing half.
  • the transmission of the forces over the full axial length of the unit without damaging bending moments is achieved according to one embodiment of the invention in that the connecting tabs of the center housing halves are provided with corresponding connecting tabs on the outer housing halves.
  • the two connecting straps with their mutually facing sides are aligned approximately in alignment with the outer sides of the one connecting strap.
  • the actual housing can be relieved of the connecting forces in that the connecting lugs arranged on the two end faces of the housing halves are connected to one another by axially extending webs, the webs on the two connecting lugs in the region of their mutually facing sides and engage one connecting lug in the area of the outer sides thereof.
  • 1 designates the outer housing half of a side channel compressor 2 of the compressor unit, which lies on the side facing away from the drive side of the compressor unit and is provided with a bearing bore 3 for an end bearing 4 of the drive shaft 5 of the unit.
  • the inner housing halves 8 and 9 of the two side channel compressors 2 and 7 are arranged.
  • the outer housing half 6 of the other side channel compressor 7 and the two inner housing halves 8 and 9 are of identical design in terms of casting technology. These housing halves 6, 8 and 9 must therefore only be machined accordingly with regard to the necessary bores and centering edges.
  • connecting straps 10 and 10a are provided on their outer circumference. These have corresponding through bores 11 and threaded holes 12 into which screws 13 can be introduced as connecting elements.
  • two connecting tabs 10 are arranged on the one end face 14 of each housing half 1, 6, 8 and 9 with a circumferential distance from one another.
  • the individual connecting straps 10a lying one before the other are each connected to one another by means of a single screw 13. With the two spaced-apart connecting straps 10, one or two connecting straps 10 can be screwed together. A screw connection on both connecting straps 10 leads to a complete symmetry with regard to the connecting forces that occur overall.
  • the individual connecting lugs 10a are connected by means of a screw 13 which extends continuously over the inner housing halves 8 and 9.
  • the two connecting straps 10 on one end face 14 are each connected via axially extending webs 16 to the individual connecting strap 10 a located on the other end face 15.
  • the webs 16 extend from the mutually facing sides of the two connecting straps 10 to the outer sides of the individual connecting straps 10a. This leaves a space circumferentially between the webs 16 through which the screws 13 can be passed.
  • FIG. 4 shows a further connection variant.
  • the two circumferentially spaced connecting tabs 10 are combined to form a continuous, widened connecting tab 17 on one end face 14.
  • two circumferentially spaced support webs 18 each extend in the axial direction to other end faces 15 of the housing halves 1, 6, 8 or 9.
  • the inner housing halves 8 and 9 are connected to one another by screws introduced into the widened connecting straps 17.
  • connection of the outer housing halves 1 and 6 to one another and to the inner housing halves 8 and 9 takes place by means of continuous tie rods 19 which are arranged in the middle of the widened connecting lugs 17 and which engage the widened connecting lugs 17 of the outer housing halves 1 and 6.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Compressor (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention relates to a compressor set consisting of at least two side-channel compressors (2, 7) in axially adjacent arrangement, each having a casing consisting of at least two casing sections (8, 9) with radially outwardly projecting connecting plates (10, 10a) and joined together by connectors (13) insertable through corresponding apertures (11, 12) in the connecting plates (10, 10a). The construction of such a compressor set and the distribution of the connecting forces are improved in that at least the two casing sections (8, 9) in the middle of the compressor set are cast in the same way and the design of the connecting plates (10, 10a) on them is such that there is still space for fitting a further connector (13) on either side of a connector (13) which can be arranged at the peripheral centre of the connecting plates (10, 10a).

Description

Die Erfindung betrifft ein Verdichteraggregat gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a compressor unit according to the preamble of claim 1.

Ein solches Verdichteraggregat ist durch das DE-U-77 15 000 bekannt. Bei diesem Aggregat sind die für die beiden Seitenkanalverdichter erforderlichen vier Gehäusehälften alle unterschiedlich ausgebildet. Dies führt zu einem hohen Fertigungaufwand. Die Verbindung der einzelnen Gehäuseteile erfolgt durch ein Zwischenfügen der mittleren Gehäuseteile zwischen die äußeren Gehäuseteile, die mittels Zugankern, welche an an den äußeren Gehäuseteilen vorgesehenen Verbindungslaschen angreifen, miteinander verbunden sind. Somit muß die gesamte Kraft von den Verbindungslaschen der äußeren Gehäuseteile aufgenommen werden.Such a compressor unit is known from DE-U-77 15 000. In this unit, the four housing halves required for the two side channel blowers are all designed differently. This leads to high manufacturing costs. The connection of the individual housing parts takes place by interposing the middle housing parts between the outer housing parts, which are connected to one another by means of tie rods which engage on connecting lugs provided on the outer housing parts. The entire force must therefore be absorbed by the connecting straps of the outer housing parts.

Dies gilt auch für ein aus der FR-A-2 294 114 bekanntes Verdichteraggregat, das aus insgesamt vier Seitenkanalverdichtern besteht, die durch an den äußeren Gehäuseteilen des gesamten Aggregates angreifende Zuganker zusammengehalten werden.This also applies to a compressor unit known from FR-A-2 294 114, which consists of a total of four side channel compressors, which are held together by tie rods acting on the outer housing parts of the entire unit.

Bei einem aus der EP-A-0 351 372 bekannten, aus zwei Seitenkanalverdichtern bestehenden Verdichteraggregat sind die in der Mitte des Aggregates liegenden Gehäusehälften gußtechnisch gleich ausgebildet. An diesen Gehäusehälften sind Verbindungslaschen vorgesehen, die mit entsprechenden an den außenliegenden Gehäusehälften vorgesehenen Verbindungslaschen korrespondieren. Mittels dieser Verbindungslaschen können die beiden jeweils zu einem Seitenkanalverdichter gehörenden Gehäuseteile miteinander verbunden werden. Über eine Verbindungsmöglichkeit der beiden Seitenkanalverdichter zu einem Aggregat ist in dieser Schrift nichts ausgesagt.In the case of a compressor assembly known from EP-A-0 351 372 and consisting of two side channel compressors, the housing halves located in the middle of the assembly are of identical design in terms of casting technology. Connecting straps are provided on these housing halves, which correspond to corresponding connecting straps provided on the outer housing halves. By means of these connecting straps, the two housing parts, each belonging to a side channel compressor, can be connected to one another. Nothing is said in this document about the possibility of connecting the two side channel compressors to one unit.

Der Erfindung liegt die Aufgabe zugrunde, ein Verdichteraggregat zu schaffen, das einfacher zu fertigen ist und bei dem die für die Verbindung der Gehäusehälften notwendigen Kräfte besser verteilt sind.The invention has for its object to provide a compressor unit that is easier to manufacture and in which the forces necessary for connecting the housing halves are better distributed.

Die Lösung der gestellten Aufgabe gelingt durch die im Kennzeichen des Anspruchs 1 angegebenen Merkmale. Durch die gußtechnisch gleiche Ausbildung zumindest der innenliegenden Gehäusehälften wird der Aufwand für die zur Herstellung der Gehäusehälften notwendigen Druckgußwerkzeuge reduziert. Hierbei wird durch die besondere Gestaltung der Verbindungslaschen eine gute Durchleitung der Kräfte in axialer Richtung erreicht, ohne daß schädliche Biegemomente in Kauf genommen werden müssen. Außerdem können die beiden inneren Gehäusehälften vorab zu einer Baugruppe zusammengefügt werden.The problem is solved by the features specified in the characterizing part of claim 1. Due to the same design in terms of casting technology, at least the inner housing halves, the outlay for the die casting tools required for producing the housing halves is reduced. Due to the special design of the connecting straps, good transmission of the forces in the axial direction is achieved without having to accept harmful bending moments. In addition, the two inner housing halves can be assembled into an assembly in advance.

Eine von Biegemomenten vollkommen freie Verbindung der Gehäusehälften läßt sich dadurch erreichen, daß jeweils zwei auf der einen Stirnseite der jeweiligen Gehäusehälfte liegenden Verbindungslaschen eine zu diesen Verbindungslaschen symmetrisch ausgerichtete, auf der anderen Stirnseite der Gehäusehälfte liegende Verbindungslasche zugeordnet ist.A connection of the housing halves that is completely free of bending moments can be achieved by assigning two connecting lugs on one end face of the respective housing half to a connecting lug symmetrically aligned with these connecting lugs and lying on the other end face of the housing half.

Die Durchleitung der Kräfte über die volle axiale Länge des Aggregates ohne schädliche Biegemomente gelingt nach einer Ausgestaltung der Erfindung dadurch, daß auch an den außenliegenden Gehäusehälften den Verbindungslaschen der in der Mitte liegenden Gehäusehälften entsprechende Verbindungslaschen vorgesehen sind.The transmission of the forces over the full axial length of the unit without damaging bending moments is achieved according to one embodiment of the invention in that the connecting tabs of the center housing halves are provided with corresponding connecting tabs on the outer housing halves.

Besonders zweckmäßig ist es, daß die beiden Verbindungslaschen mit ihren einander zugewandten Seiten in etwa fluchtend zu den Außenseiten der einen Verbindungslasche ausgerichtet sind. Bei einem derartigen Verdichteraggregat läßt sich eine Entlastung des eigentlichen Gehäuses von den Verbindungskräften dadurch erreichen, daß die zu den beiden Stirnseiten der Gehäusehälften angeordneten Verbindungslaschen durch sich axial erstreckende Stege miteinander verbunden sind, wobei die Stege an den beiden Verbindungslaschen im Bereich von deren einander zugewandten Seiten und an der einen Verbindungslasche im Bereich von deren Außenseiten angreifen.It is particularly expedient that the two connecting straps with their mutually facing sides are aligned approximately in alignment with the outer sides of the one connecting strap. In such a compressor unit, the actual housing can be relieved of the connecting forces in that the connecting lugs arranged on the two end faces of the housing halves are connected to one another by axially extending webs, the webs on the two connecting lugs in the region of their mutually facing sides and engage one connecting lug in the area of the outer sides thereof.

Anhand eines in der Zeichnung dargestellten Ausführungsbeispieles wird die Erfindung nachfolgend näher beschrieben. Es zeigt:

FIG 1
ein aus zwei Seitenkanalverdichtern bestehendes Verdichteraggregat im Schnitt,
FIG 2-4
jeweils eine Verbindungsvariante der einzelnen Gehäusehälften in Draufsicht.
The invention is described in more detail below on the basis of an exemplary embodiment shown in the drawing. It shows:
FIG. 1
a compressor unit consisting of two side channel compressors on average,
FIG 2-4
a connection variant of the individual housing halves in plan view.

Mit 1 ist die äußere Gehäusehälfte des einen Seitenkanalverdichters 2 des Verdichteraggregates bezeichnet, die auf der der Antriebsseite des Verdichteraggregates abgewandten Seite liegt und mit einer Lagerbohrung 3 für ein endseitiges Lager 4 der Antriebswelle 5 des Aggregates versehen ist. Zwischen der äußeren Gehäusehälfte 6 des anderen Seitenkanalverdichters 7 sind die inneren Gehäusehälften 8 und 9 der beiden Seitenkanalverdichter 2 und 7 angeordnet.1 designates the outer housing half of a side channel compressor 2 of the compressor unit, which lies on the side facing away from the drive side of the compressor unit and is provided with a bearing bore 3 for an end bearing 4 of the drive shaft 5 of the unit. Between the outer housing half 6 of the other side channel compressor 7, the inner housing halves 8 and 9 of the two side channel compressors 2 and 7 are arranged.

Die äußere Gehäusehälfte 6 des anderen Seitenkanalverdichters 7 und die beiden inneren Gehäusehälften 8 und 9 sind gußtechnisch gleich ausgebildet. Diese Gehäusehälften 6,8 und 9 müssen daher nur hinsichtlich notwendiger Bohrungen und Zentrierränder entsprechend bearbeitet werden. Für die Verbindung der einzelnen Gehäusehälften 1,6,8 und 9 miteinander sind an deren Außenumfang Verbindungslaschen 10 bzw.l0a vorgesehen. Diese weisen entsprechende Durchsteckbohrungen 11 und Gewindelöcher 12 auf, in die Schrauben 13 als Verbindungselemente einbringbar sind.The outer housing half 6 of the other side channel compressor 7 and the two inner housing halves 8 and 9 are of identical design in terms of casting technology. These housing halves 6, 8 and 9 must therefore only be machined accordingly with regard to the necessary bores and centering edges. For the connection of the individual housing halves 1, 6, 8 and 9 to one another, connecting straps 10 and 10a are provided on their outer circumference. These have corresponding through bores 11 and threaded holes 12 into which screws 13 can be introduced as connecting elements.

Die gußtechnisch gleiche Ausbildung der inneren Gehäusehälften 8 und 9 sowie der äußeren Gehäusehälfte 6 des anderen Seitenkanalverdichters 7 erfordert eine entsprechende Gestaltung der Verbindungslaschen 10, damit diese auch nach Umschlag der entsprechenden Gehäusehälften zusammenpassen.The same design of the inner housing halves 8 and 9 and the outer housing half 6 of the other side channel compressor 7 requires a corresponding design of the connecting tabs 10 so that they fit together even after the corresponding housing halves have been turned over.

Wie aus den FIG 2 und 3 zu ersehen ist, sind auf der einen Stirnseite 14 jeder Gehäusehälfte 1,6,8 und 9 jeweils zwei Verbindungslaschen 10 mit umfangsmäßigem Abstand zueinander angeordnet. Auf der anderen Stirnseite 15 der Gehäusehälften 1,6,8 und 9 ist jeweils eine mittig zu den beiden Verbindungslaschen 10 der einen Stirnseite 14 angeordnete Verbindungslasche 10a vorgesehen. Durch das wegen der gleichen Ausbildung der Gehäusehälften 6,8 und 9 teilweise notwendige Wenden der entsprechenden Gehäusehälften kommen entweder die beiden Verbindungslaschen 10 oder die einzelne Verbindungslasche 10a voreinander zu liegen und können somit mittels entsprechender Schrauben 13 verbunden werden. Wegen des umfangsmäßigen Versatzes der Verbindungslaschen 10 gegenüber der einzelnen Verbindungslasche 10a ist seitlich zu dieser einzelnen Verbindungslasche 10a die Anbringung weiterer Verbindungselemente möglich.As can be seen from FIGS. 2 and 3, two connecting tabs 10 are arranged on the one end face 14 of each housing half 1, 6, 8 and 9 with a circumferential distance from one another. On the other end face 15 of the housing halves 1, 6, 8 and 9 there is in each case a connecting strap 10a arranged centrally to the two connecting straps 10 of the one end face 14. Because of that same design of the housing halves 6, 8 and 9 partially necessary turning of the corresponding housing halves, either the two connecting lugs 10 or the individual connecting lug 10 a come to lie in front of one another and can therefore be connected by means of corresponding screws 13. Because of the circumferential offset of the connecting tabs 10 relative to the individual connecting tab 10a, it is possible to attach further connecting elements laterally to this individual connecting tab 10a.

Bei der Ausführungsvariante nach FIG 2 sind die voreinanderliegenden einzelnen Verbindungslaschen 10a jeweils mittels einer einzelnen Schraube 13 miteinander verbunden. Bei den beiden voneinander beabstandeten Verbindungslaschen 10 kann eine Verschraubung an einer oder beiden Verbindungslaschen 10 erfolgen. Eine Verschraubung an beiden Verbindungslaschen 10 führt zu einer vollkommenen Symmetrie hinsichtlich der auftretenden Verbindungskräfte insgesamt. Bei der Ausführungsvarianten nach FIG 3 erfolgt die Verbindung der einzelnen Verbindungslaschen 10a mittels einer sich durchgehend über die inneren Gehäusehälften 8 und 9 erstreckenden Schraube 13.In the embodiment variant according to FIG. 2, the individual connecting straps 10a lying one before the other are each connected to one another by means of a single screw 13. With the two spaced-apart connecting straps 10, one or two connecting straps 10 can be screwed together. A screw connection on both connecting straps 10 leads to a complete symmetry with regard to the connecting forces that occur overall. In the embodiment variants according to FIG. 3, the individual connecting lugs 10a are connected by means of a screw 13 which extends continuously over the inner housing halves 8 and 9.

Zur Erhöhung der Festigkeit sind die beiden auf der einen Stirnseite 14 liegenden Verbindungslaschen 10 über sich axial erstreckende Stege 16 jeweils mit der auf der anderen Stirnseite 15 liegenden einzelnen Verbindungslasche 10a verbunden. Die Stege 16 erstrecken sich von den einander zugewandten Seiten der beiden Verbindungslaschen 10 zu den Außenseiten der einzelnen Verbindungslaschen 10a. Damit verbleibt umfangsmäßig zwischen den Stegen 16 ein Raum, durch den die Schrauben 13 hindurchgeführt werden können.To increase the strength, the two connecting straps 10 on one end face 14 are each connected via axially extending webs 16 to the individual connecting strap 10 a located on the other end face 15. The webs 16 extend from the mutually facing sides of the two connecting straps 10 to the outer sides of the individual connecting straps 10a. This leaves a space circumferentially between the webs 16 through which the screws 13 can be passed.

Die Darstellung nach FIG 4 zeigt eine weitere Verbindungsvariante. Gegenüber den in den FIG 2 und 3 dargestellten Varianten sind die beiden umfangsmäßig voneinander beabstandeten Verbindungslaschen 10 zu einer durchgehenden, verbreiterten Verbindungslasche 17 auf der einen Stirnseite 14 zusammengefaßt. Von diesen verbreiterten Verbindungslaschen 17 erstrecken sich jeweils zwei umfangsmäßig voneinander beabstandete Stützstege 18 in axialer Richtung zu anderen Stirnseite 15 der Gehäusehälften 1,6,8 bzw.9. Die inneren Gehäusehälften 8 und 9 sind durch in den verbreiterten Verbindungslaschen 17 eingebrachte Schrauben miteinander verbunden. Die Verbindung der äußeren Gehäusehälften 1 und 6 miteinander und mit den inneren Gehäusehälften 8 und 9 erfolgt mittels in der Mitte der verbreiterten Verbindungslaschen 17 angeordneter, durchgehender Zuganker 19, die an den verbreiterten Verbindungslaschen 17 der äußeren Gehäusehälften 1 und 6 angreifen.The illustration according to FIG. 4 shows a further connection variant. Compared to the variants shown in FIGS. 2 and 3, the two circumferentially spaced connecting tabs 10 are combined to form a continuous, widened connecting tab 17 on one end face 14. From these widened connecting straps 17, two circumferentially spaced support webs 18 each extend in the axial direction to other end faces 15 of the housing halves 1, 6, 8 or 9. The inner housing halves 8 and 9 are connected to one another by screws introduced into the widened connecting straps 17. The connection of the outer housing halves 1 and 6 to one another and to the inner housing halves 8 and 9 takes place by means of continuous tie rods 19 which are arranged in the middle of the widened connecting lugs 17 and which engage the widened connecting lugs 17 of the outer housing halves 1 and 6.

Claims (5)

  1. Compressor set which comprises at least two side-channel compressors (2 and 7) which are in an axially adjacent arrangement and have in each case a casing comprising at least two casing halves (1, 8 and 6, 9 respectively) provided on their outer circumference with radially outwardly projecting connecting plates (10, 10a, 17), and which are joined together by connecting elements (13) which can be introduced into corresponding openings (11, 12) in the connecting plates (10, 10a, 17), characterised in that at least the two casing halves (8, 9) located in the middle of the compressor set are cast in the same way and the connecting plates (10, 10a, 17) provided on said casing halves are designed, at least on the one end face (14) of the casing halves (8, 9), in such a way that there is still space on both sides of a connecting element (13, 19), which can be mounted in the middle of the circumference of the connecting plates (10, 17), in each case for a further connecting element (13) to be mounted.
  2. Compressor set according to claim 1, characterised in that in each case two connecting plates (10) located on the one end face (14) of the respective casing half (1, 6, 8 or 9) are assigned one connecting plate (10a) which is aligned symmetrically to said connecting plates (10) and is located on the other end face (15) of the respective casing half (1, 6, 8 or 9).
  3. Compressor set according to claim 1 or 2, characterised in that connecting plates (10 and 10a) corresponding to the connecting plates (10 and 10a) of the casing halves (8 and 9) located in the middle are also provided on the outer casing halves (1 and 6).
  4. Compressor set according to claim 1, 2 or 3, characterised in that the two connecting plates (10) are aligned with their mutually facing sides at least substantially in line with the outer sides of the one connecting plate (10a).
  5. Compressor set according to claim 4, characterised in that the connecting plates (10 and 10a) arranged on both end faces (14 and 15) of the casing halves (1, 6, 8 and 9) are joined together by axially extending webs (16), the webs (16) engaging on the two connecting plates (10) in the region of their mutually facing sides and on the one connecting plate (10a) in the region of its outer sides.
EP93922497A 1992-11-09 1993-10-18 Compressor set Expired - Lifetime EP0667933B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE9215231U DE9215231U1 (en) 1992-11-09 1992-11-09 Compressor unit
DE9215231U 1992-11-09
PCT/DE1993/000988 WO1994011637A1 (en) 1992-11-09 1993-10-18 Compressor set

Publications (2)

Publication Number Publication Date
EP0667933A1 EP0667933A1 (en) 1995-08-23
EP0667933B1 true EP0667933B1 (en) 1996-03-27

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EP93922497A Expired - Lifetime EP0667933B1 (en) 1992-11-09 1993-10-18 Compressor set

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US (1) US5605443A (en)
EP (1) EP0667933B1 (en)
JP (1) JP3330606B2 (en)
DE (2) DE9215231U1 (en)
WO (1) WO1994011637A1 (en)

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DE10344718B3 (en) * 2003-09-26 2005-01-05 Elektror M. Müller GmbH Side channel compressor has turbine wheel housing provided by 2 identical housing shells enclosed adjacent their planar separation surfaces by peripheral ring
US7632060B2 (en) * 2005-01-24 2009-12-15 Ford Global Technologies, Llc Fuel pump having dual flow channel
US7165932B2 (en) * 2005-01-24 2007-01-23 Visteon Global Technologies, Inc. Fuel pump having dual single sided impeller
JP4671844B2 (en) * 2005-05-27 2011-04-20 株式会社日立産機システム Blower

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JP3330606B2 (en) 2002-09-30
US5605443A (en) 1997-02-25
EP0667933A1 (en) 1995-08-23
DE59302073D1 (en) 1996-05-02
JPH08503051A (en) 1996-04-02
DE9215231U1 (en) 1994-03-10
WO1994011637A1 (en) 1994-05-26

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